Help!!! Can someone explain what this is.

Shows_world

Shows_world

New Member
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If you look at the leaves you can see brown lines. I’m using coco coir with perlite. general organics go box nutrients. Ph going in 5.5. Ph coming out 6.3. Using 1000w led grow light. Temps 81 degrees and humidity 50%. Grow tent 2x4x5.5.
 

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macsnax

macsnax

Well-Known Member
Looks like the being of phosphorus def. And your new growth where you topped it looks funny in a different way. Not too sure. Have you had any ph issues?
 
macsnax

macsnax

Well-Known Member
I don't think you need to panic. Now is time to think this out and end run any major issues. I'm still sticking with phosphorus, the purple stems combined with the brown marks less me to think so. Did you top or fim?
 
Shows_world

Shows_world

New Member
It swung high for a bit. 7.2 ph was the highest and once I found out I flushed it immediately and got it back in range (6.3). The ph runoff always fluctuates a bit so I been changing what was going in from 5.8 to 5.5 ph.
 
macsnax

macsnax

Well-Known Member
Here I'm bored tonight so I did a little reading. I know your not in soil so you probably need more phosphorus than this dude did. I will post the link to this thread at the bottom.

his is common with GO and Roots Organics Soil. If you plants are a month old, you should be feeding heavily. To prevent the phosphorus def that results from using the GO according to the instructions in veg, Half and half your Biothrive Grow and Biothrive Bloom. 10ML Grow + 10ML Bloom per gallon. Also, you should be using the CalMG+ at 20ML per gallon. That will fix your problem. Now, to make sure you dont run into that problem in the future, add some Rock Phosphate to your soil prior to planting in it.

https://www.rollitup.org/t/general-organics-nutrients-help.605090/
 
macsnax

macsnax

Well-Known Member
I think you will be ok. Take a pic Saturday and compare. The damage you see now isn't going to go away, you'll be comparing to see if it is worse.
 
coreywebster

coreywebster

Well-Known Member
Keep your ph 5.8-6.1 going in. Magnesium uptake is better 6ish. At 5.5 the level of magnesium uptake is very low.
Don't chase your tail measuring run off in coco.
 
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